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<?php declare(strict_types=1); function test(int $X): int { return $X * 2; } echo test((int)"13");
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
26
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/rDbUc on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/rDbUc on line 4
Process exited with code 255.

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